ci/parallelization: manifest tests run in parallel

To avoid hitting the 4h timeout.

.gitlab-ci.yml

@@ -92,14 +92,15 @@ Manifests:
   extends: .terraform
   script:
     - schutzbot/deploy.sh
-    - schutzbot/manifest_tests.sh
+    - schutzbot/manifest_tests.sh ${PARALLEL_EXEC}
   artifacts:
     when: always
     paths:
       - manifest-db/generated-image-infos/
   parallel:
     matrix:
-      - RUNNER:
+      - PARALLEL_EXEC: ["1/4", "2/4", "3/4", "4/4"]
+        RUNNER:
           - aws/fedora-36-x86_64
           - aws/fedora-36-aarch64
           - aws/fedora-37-x86_64
@@ -108,7 +109,8 @@ Manifests:
           - aws/centos-stream-8-aarch64
           - aws/centos-stream-9-x86_64
           - aws/centos-stream-9-aarch64
-      - RUNNER:
+      - PARALLEL_EXEC: ["1/4", "2/4", "3/4", "4/4"]
+        RUNNER:
           - aws/rhel-8.7-ga-x86_64
           - aws/rhel-8.7-ga-aarch64
           - aws/rhel-8.8-nightly-x86_64

schutzbot/manifest_tests.sh

@@ -19,6 +19,8 @@ chcon $OSBUILD_LABEL tools/image-info
 # set the maximum cache size to unlimited
 echo "{}" | sudo osbuild --store /var/lib/osbuild/store --cache-max-size unlimited -
 
+IFS='/' read -r -a array <<< $1
+
 # run the tests from the manifest-db for this arch+distro
 echo "Running the osbuild-image-test for arch $ARCH and ditribution $DISTRO_CODE"
-sudo tools/osbuild-image-test --arch=$ARCH --distro=$DISTRO_CODE --image-info-path=tools/image-info
+sudo tools/osbuild-image-test --arch=$ARCH --distro=$DISTRO_CODE --image-info-path=tools/image-info --instance-number="${array[0]}" --total-number-of-instances="${array[1]}"